Footwear sole



FIG. 1 is a perspective view of a footwear sole embodying our new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a front elevational view thereof; and,

FIG. 6 is a rear elevational view thereof.

FIGS. 1-6 show portions of an upper and a midsole in broken lines. The upper and midsole are shown for environmental purposes and do not form any part of the claimed design. 

The ornamental design for footwear sole, as shown and described. 